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Cheap Flights from Phoenix to Denver | EazAir

Travellers

Phoenix to Denver flight insights

Average flight time

~1h 55m (estimated)

PHX → DEN

Cheapest month

—

Based on cached fare history

Cheapest cached price

$152

Checking live fares…

Last checked Aug 31, 2026

Planning a trip from Phoenix to Denver? The average flight time on this route is ~1h 55m (estimated). The lowest fare we have cached for this route is $152 (last checked Aug 31, 2026).

Phoenix to Denver covers a straight-line distance of about 602 miles. Based on that distance, a nonstop flight would take approximately ~1h 55m (estimated). Actual flight time varies by airline, aircraft and routing.

Route Quick Facts

Quick facts for flights from Phoenix to Denver on Eazair
OriginPhoenix (PHX)
DestinationDenver (DEN)
Average Flight Time—
Cheapest Month to Fly—
Current Lowest Fare$152
Fares Last CheckedAug 31, 2026

Flight deals from Phoenix to Denver

Traveling from the Sonoran Desert to the Rocky Mountains requires a quick two-hour air transit. Direct flights from Phoenix Sky Harbor International Airport to Denver International Airport cover a distance of roughly 600 miles. Passengers leaving the arid climate of Maricopa County will land quickly in the high altitude of Colorado. Multiple partner carriers operate daily non-stop service between Phoenix and Denver. Southwest Airlines and Frontier Airlines frequently schedule direct flights connecting PHX and DEN directly. United Airlines also maintains a massive hub at Denver International Airport, offering numerous daily connections originating from Phoenix Sky Harbor. Passenger volume on the Phoenix to Denver route peaks during the winter ski season and mid-summer months. December through February sees heavy traffic as Arizona residents fly into Colorado for snow sports, while July brings travelers escaping the extreme Phoenix heat. Booking tickets for this specific desert-to-mountain journey during the shoulder seasons of October or April typically yields lower fares.

View of Denver, a popular flight destination from Phoenix

About Denver

Popular areas to know in Denver include LoDo (Lower Downtown), RiNo Art District, and Capitol Hill.

A semi-arid climate with over 300 sunny days a year; the high altitude keeps evenings cool even in summer, and winter brings snow to the nearby mountains.

Frequently asked questions

How long is the flight from Phoenix to Denver?
A direct flight from Phoenix Sky Harbor International Airport to Denver International Airport typically takes about one hour and fifty minutes.
Which partner carriers fly directly from Phoenix to Denver?
Southwest Airlines, Frontier Airlines, and United Airlines offer frequent direct service between Phoenix and Denver.
What is the cheapest month to fly from Phoenix to Denver?
Late September and October often feature the lowest fares for travel from Phoenix to Denver, avoiding the peak winter ski season and busy summer travel months.
Do flights from Phoenix to Denver include checked baggage?
Baggage policies vary by carrier, as budget partners like Frontier charge extra for checked bags on the Phoenix to Denver route, while Southwest includes two checked bags in your standard fare.
What time does the earliest morning flight leave Phoenix for Denver?
The first flights out of Phoenix Sky Harbor typically depart around 5:30 AM and land at Denver International Airport by 7:20 AM local time.
What is the flight distance between Phoenix and Denver?
The direct flight path from Phoenix to Denver covers a geographical distance of approximately 602 miles across the American Southwest.
How far in advance should I book a ticket from Phoenix to Denver?
We recommend securing your flight from Phoenix to Denver four to six weeks before your intended departure date to secure the best rates from our partners.
What are the transportation options from the airport upon arriving in Denver from Phoenix?
After flying from Phoenix to Denver, you can take the A Line commuter train directly from Denver International Airport to Union Station downtown.
Are flights between Phoenix and Denver frequently delayed by weather?
Winter snowstorms in Colorado can occasionally cause delays for planes traveling from Phoenix to Denver, so checking weather advisories from November through March is highly recommended.
Can I upgrade to first class on flights from Phoenix to Denver?
Yes, legacy carriers like United Airlines and American Airlines offer first-class cabin upgrades on their daily routes connecting Phoenix and Denver.
How far is it from Phoenix to Denver?
The straight-line distance from Phoenix to Denver is about 602 miles.
What ID do I need to fly from Phoenix to Denver?
Since Phoenix to Denver is a domestic US flight, you'll need a REAL ID-compliant driver's license or another TSA-accepted form of ID, such as a valid US passport. A standard, non-compliant driver's license alone is no longer accepted at TSA checkpoints.
Which airlines operate flights from Phoenix to Denver?
Based on a recent live fare search, Frontier Airlines, Delta Air Lines, United Airlines and American Airlines had bookable flights on the Phoenix to Denver route.
What's the weather usually like in Denver?
A semi-arid climate with over 300 sunny days a year; the high altitude keeps evenings cool even in summer, and winter brings snow to the nearby mountains.

Airline baggage policies

Baggage allowances differ significantly between fare classes (Basic/Light vs. Standard/Flex) and can change over time. Always verify the exact allowance for your specific fare with the airline before you fly.

General airline baggage policy reference
AirlineCabin bagChecked bag
Delta Air Lines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main Cabin and above; Basic Economy usually excludes it
American Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main Cabin and above; Basic Economy usually excludes it
United Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Economy and above; Basic Economy usually excludes it
Southwest Airlines1 carry-on + 1 personal item2 checked bags included on every fare — a long-standing, well-known Southwest policy
JetBlue Airways1 personal item on the cheapest (Blue Basic) fare; a carry-on is added on higher faresNot included on Blue Basic; typically included from Blue Plus and above
Alaska Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main and above; Saver fares usually exclude it
Spirit Airlines1 personal item included; a full-sized carry-on is a paid add-onNot included on the base fare — a paid add-on at every fare tier
Frontier Airlines1 personal item included; a full-sized carry-on is a paid add-onNot included on the base fare — a paid add-on at every fare tier

Travel tips

Arrive early for domestic flights

TSA generally recommends arriving at least 2 hours before a domestic departure, more at larger hub airports during peak travel periods.

Pack a mixed carry-on

Keep a change of clothes, chargers, and any essentials in your carry-on rather than only your checked bag, in case of a delay or a bag that doesn't arrive with you.

Ease jet lag on longer routes

On longer cross-country flights, adjusting your sleep schedule a day or two before departure and staying hydrated in flight can reduce jet lag on arrival.

Screenshot your confirmation

Save a screenshot or PDF of your booking confirmation and boarding pass before you travel, in case you lose signal or battery at the airport.

Check in online when it opens

Most airlines open online check-in 24 hours before departure — checking in early can help with seat selection and, on some airlines, boarding group assignment.

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